The magnetic exchange interaction via N-H···O-bonding in copper(II) complex with 1-phenyl-3-methyl-4-formylpyrazol-5-one 2-quinolylhydrazone

  • Levchenkov S
  • Shcherbakov I
  • Popov L
 et al. 
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Abstract

The mononuclear copper(II) complex [CuL(CH3COO)], where L is monoanion of 1-phenyl-3-methyl-4-formylpyrazol-5-one 2-quinolylhydrazone has been synthesized. The weak intermolecular antiferromagnetic exchange interaction between copper(II) ions has been determined with the data of ESR spectroscopy and cryomagnetic measurements (2J = -3.25 cm1). XRD data in combination with DFT calculations of exchange parameter within broken symmetry approach indicates that intermolecular exchange coupling is going through NH ··· O hydrogen bonds in centrosymmetric H-bonded dimers. © 2013 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Copper complexes
  • DFT calculations
  • Exchange interaction
  • X-ray crystal structure

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